File: iac/projects/postgresql/resources/stateful-set.yaml

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: postgres
  labels:
    app.kubernetes.io/name: postgres
    app.kubernetes.io/version: v18.0
    app: postgres
    tier: database
spec:
  serviceName: "postgres-headless"
  replicas: 1
  selector:
    matchLabels:
      app: postgres
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
        - name: postgres
          envFrom:
            - secretRef:
                name: postgres-secret
          image: postgres:latest
          imagePullPolicy: IfNotPresent
          livenessProbe:
            exec:
              command:
                - sh
                - -c
                - "pg_isready -U myuser -d mydatabase"
            initialDelaySeconds: 45
            timeoutSeconds: 2
          ports:
            - name: postgres
              containerPort: 5432
              protocol: TCP
          readinessProbe:
            exec:
              command:
                - sh
                - -c
                - "pg_isready -U myuser -d mydatabase"
            initialDelaySeconds: 15
            timeoutSeconds: 2
          resources:
            limits:
              cpu: "500m"
              memory: "1Gi"
            requests:
              cpu: "250m"
              memory: "512Mi"
          volumeMounts:
            - name: postgres-storage
              mountPath: /var/lib/postgresql/data
  volumeClaimTemplates:
    - metadata:
        name: postgres-storage
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 10Gi